Version 4
SHEET 1 880 680
WIRE -432 -96 -480 -96
WIRE -320 -96 -352 -96
WIRE 80 -96 -96 -96
WIRE 176 -96 80 -96
WIRE 256 -96 176 -96
WIRE 352 -96 304 -96
WIRE -720 -64 -720 -80
WIRE -320 -64 -320 -96
WIRE -96 -64 -96 -96
WIRE 80 -64 80 -96
WIRE 176 -64 176 -96
WIRE 304 -64 304 -96
WIRE -144 -48 -192 -48
WIRE 256 -48 256 -96
WIRE -144 0 -192 0
WIRE -720 32 -720 16
WIRE -320 48 -320 16
WIRE -192 48 -192 0
WIRE -96 48 -96 16
WIRE 80 48 80 16
WIRE 176 48 176 0
WIRE 256 48 256 0
WIRE 304 48 304 16
WIRE -432 240 -480 240
WIRE -320 240 -352 240
WIRE 80 240 -96 240
WIRE 176 240 80 240
WIRE 256 240 176 240
WIRE 352 240 304 240
WIRE -320 272 -320 240
WIRE -96 272 -96 240
WIRE 80 272 80 240
WIRE 176 272 176 240
WIRE 304 272 304 240
WIRE -144 288 -192 288
WIRE 256 288 256 240
WIRE -144 336 -192 336
WIRE -320 384 -320 352
WIRE -192 384 -192 336
WIRE -96 384 -96 352
WIRE 80 384 80 352
WIRE 176 384 176 336
WIRE 256 384 256 336
WIRE 304 384 304 352
FLAG 304 48 0
FLAG -96 48 0
FLAG 176 48 0
FLAG 256 48 0
FLAG -192 48 0
FLAG -720 32 0
FLAG 352 -96 OUT
FLAG -480 -96 OUT
FLAG -720 -80 IN
FLAG -192 -48 IN
FLAG 80 48 0
FLAG -320 48 0
FLAG 304 384 0
FLAG -96 384 0
FLAG 176 384 0
FLAG 256 384 0
FLAG -192 384 0
FLAG 352 240 OUT1
FLAG -480 240 OUT1
FLAG -192 288 IN1
FLAG 80 384 0
FLAG -320 384 0
SYMBOL e 304 -80 R0
SYMATTR InstName E1
SYMATTR Value 1
SYMBOL cap 160 -64 R0
SYMATTR InstName C1
SYMATTR Value {C1}
SYMBOL voltage -720 -80 R0
WINDOW 123 46 76 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -27 152 Left 2
SYMATTR Value2 AC 1 0
SYMATTR Value PULSE(0 1 0 1p 0 1 100)
SYMATTR InstName V1
SYMBOL res -336 -112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 20k
SYMBOL res -336 32 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res 64 -80 R0
SYMATTR InstName R1
SYMATTR Value {R1}
SYMBOL Misc\\Gpoly -96 -80 R0
WINDOW 3 -25 186 Left 2
SYMATTR Value VALUE={1m*limit(V(in), -0.1, 0.1)}
SYMATTR InstName G2
SYMBOL e 304 256 R0
SYMATTR InstName E2
SYMATTR Value 1
SYMBOL cap 160 272 R0
SYMATTR InstName C2
SYMATTR Value {C1}
SYMBOL res -336 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 20k
SYMBOL res -336 368 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res 64 256 R0
SYMATTR InstName R6
SYMATTR Value {R1}
SYMBOL bi -96 352 M180
WINDOW 0 24 80 Left 2
WINDOW 3 -14 -70 Left 2
SYMATTR InstName B1
SYMATTR Value I=1m*limit(V(in), -0.1, 0.1)
TEXT -752 -248 Left 2 !;ac oct 1000 10 10Meg
TEXT -752 -216 Left 2 !.tran 0 10u 0
TEXT -376 -248 Left 2 !.param C1=0.1e-9
TEXT -376 -216 Left 2 !.param R1=100MEG
TEXT -120 -128 Left 2 ;gpoly
TEXT -120 208 Left 2 ;bi